Actually, if you want "acting in the best interest of the company" to not mean "hire men over women", you want mandatory paternity leave requirements, not just

Actually, if you want "acting in the best interest of the company" to not mean "hire men over women", you want mandatory paternity leave requirements, not just voluntary. Enough men don't take paternity leave when it's voluntary that it ends up being cheaper for the company to hire men over women.